Selective signaling means.



I. F. MANNY. SELECTIVE SIGNALING Mums. APPLICATION IILBD NOV. 29, 1909.

Patented Mar. 14, 1911.

6 SHEETS-BEER! 1.

THE NORRIS PETERS co., WASHINGTON, n. c.

I. P. MANNY. 1 SELECTIVE SIGNALING MEANS. 'APPLIOATION rum) 11011.29,1909.

Patented Mar.14,1911.

6 SHEETS-SHEET 2.

a; up? I THE mmms PETERS cm, wnsnmcron. 0. c1

I. F. MANNY. SELEGTIVE SIGNALING MEANS, APPLIUATION FILED NOV. 29, 1909.

6 SHEETBSHEET 3.

THE "cams PETER: cm, wasmucrou, u. c.

Patented Mar. 14, 1911.

In Fl SELECTIVE SIGNALING MEANS.

APPLICATION FILED NOV. 29, 1909.

Patented Mar. 14, 1911.

6 SHEETS-SHEET 4,

rut cams rn-A'Rs co., wAsHmo-ron, D. c. v

I. F. MANNY.

SELECTIVE SIGNALING MEANS.

APPLICATION FILED NOV. 29, 1999.

Patented Mar.14,1911.v

6 SHEETS-SHEET 5.

THE Kama]: rzrnes ca. wAsl-Iluarou, a. c.

I. 1". MANNY. SELECTIVE SIGNALING MEANS. APPLIOATION FILED NOV. 29,1909.

Patented Mar. 14, 1911.

6 SHEETS-BHBET 6.

E A AQQQQ E UNITED STATES PATENT OFFICE.

IRA F. MANNY, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO SELECTIVE SIGNALCOMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

SELECTIVE SIGNALING MEANS.

Specification of Letters Patent.

Patented Mar. 14, 1911.

Application filed November 29, 1909. Serial No. 530,327.

vented new and useful Improvements in Selective Signaling Means, ofwhich the followmg 1s a descrlptlon, reference being -had to theaccompanying drawings, which are a part of this specification.

This invention relates to selective signaling means for use withtelephone or other systems, and has for its object to provide mechanismsto be placed in an electrical circuit at the several stations and causedto be set in operation from the central or signaling station, suchmechanisms being so constructed that it is within the power of theoperator at the signaling station to effect the signaling at whicheverstation is desired without signaling the other station.

In order to accomplish the above results the invention comprises a motordriven mechanism detained by a magnet controlled pawl, which whenreleased by the first impulse from the signaling station starts themechanism in operation, the subsequent impulses from the signalingstation serving to permit a step by step escapement of a r0- tary memberwhich has a yielding connection with the motor, there being a signalingmember in a position with relation thereto, depending upon the number ofthe station, where itis adapted to be engaged by the pawl when theproper number of impulses has been given and the rotary member has beenmoved out of engagement with the pawl by mechanism actuated by the operation of the motor, whereby the signaling member is detained by the pawlduring an advance movement of the rotary member to take up its lostmotion due to its detention by the pawl, the result of such detention ofthe signalini member by the pawl being to bring switch contacts togetherto complete an electrical signaling circuit. The relation of thesignaling member to the rotary memher is such that the movements of thelatter cause the signaling member to become dis engaged from the pawlwhen the signaling circuit has been completed and in this position ofthe signaling member it is locked by an automatic means so as to prolongthe duration of the signaling contact, such locking means beingautomatically released to permit the return of the signaling memberbefore the cycle of operation of the instrument is completed, the rotarymember being eventually returned by the operation of the motor to itsposition of engagement with the pawl for detaining the motor again atthe starting position of the parts. In the event of the central stationsending a greater number of impulses than the number of a particularstation, the signaling at that station is prevented by the signalingmember thereof having passed beyond the pawl before the pawl is releasedfrom the rotary member. However, to prevent the signaling atsuch stationin the event of a number of impulses less than the number of thestation, a guard is provided on the rotary member in the path of thepawl when the rotary member is released from the pawl and in advance ofthe signaling member, the movement of said guard, produced by theadvance of the rotary member on being released, causing a retraction ofthe signaling member out of its normal position where itwill not engagethe pawl so that it will be released and returned to its normal positionwithout effecting the signaling contact.

Incidental to the above construction it is a further object of thisinvention to provide for easily changing the instrument to respond toany desired number of impulses within the range of the system for whichit is designed. Also an object is to provide the starting arm with meansfor giving it an outward movement after it has engaged the pawl so as torelieve the burden upon its operating magnet in releasing the motor uponthe first impulse of the signal.

Another object is to provide for automatically rewinding a clockmechanism when employed as the motor, such rewinding being effected bythe signaling impulses. Another object is to provide an electricalswitch operated by the movements of the motor for changing electricalcircuits, such as for substituting a bell or other signaling member forthe magnet in the station circuit, whereby the operation of the bell maybe effected from the signaling station as well as the selection of theparticular station at which the signaling is to be produced.

A further object of the invention is to improve upon details ofconstruction of the various parts of the mechanism.

The invention consists in the construction and relative arrangementofcertain parts and in combinations of parts hereinafter particularlydescribed, and pointed out in the claims,'and all equivalents thereof.

In the'accompanying drawings I show an exemplifying structure embodyingthe invention, but it is to be understood that the invention is capableof embodiment in different forms a Referring to the drawings in whichlike characters of reference indicate the same parts in the severalviews: Figure l is a front elevation of a selective signaling meansconstructed in accordance with this invention, the parts being in theirnormal position; Fig. 2 is a similar view thereof with the parts in theact of producing the signaling, one manner of connecting the vcalsignaling circuit being shown in diagram; Fig. 3 is a similar view withthe parts in a further advanced position, showing the signaling memberbeinglocked in its con taetposition; Fig. 4 is a similar view with theparts in position for releasing the signaling member from the pawl bymeans of the operation of the guard when a signal has been given of aless number of impulses 7 than the numberof the station to which thisinstrument belongs;-Fig. '5 is a side elevation of the mechanism; Fig. 6is a sectional elevation of the rear'of the rotary member with itsassociated parts; Fig. 7 is avertica'l sectional view throu h theseparts, showing the means for shifting the rotary member into and out ofposition for engagement with the pawl; Fig. 8 is a detail view of suchshifting means; Fig. 9 is a detail view showing .theconstruction andarrangement of the signahng member andthe guardtherefor;

Fi 10 is a detail view of the cam actuated 40' tor shaft connection forthe starting arm;

swltch; Fig. 11 is a detail view of the mo- Fig. 12 is a front elevationof the casing with parts removed showing in diagram the relation of theparts of the motor clock work mechanism, and, Fig. 13 is a detailed viewof the tapering screw means for seeur-' ing an adjust-ing engagementbetween the disk and ring portions of the rotary member.

In these drawings, referring to Figs. 5 and 12, 15 represents a frameconstruction or casing in which the parts are contained, the motor ashere shown comprising a winding shaft 16 loosely carrying a largedriving gear 17 with a motor spring 18 connected at its ends to thewinding shaft and the driving gear respectively, and a train ofgearing19, 20, 21, 22, 23, 24 and 25 increasing in speed from thedriving gear 17 to a motor shaft 26 which extends a considerabledistancein front of the front plate of the frame where it carries therotary member and the starting arm.

As shown in Figs. 6. 7 and 8 the rotary member is composite, that is, itis made up of acentral disk-like portion 27 and an outer ringdikeportion 28 surrounding the disklike portion and adjustably connectedtherewith. The disk 27 loosely fits on a sleeve 29, shouldered at oneend thereof, and is held in place on the sleeve by having a spider frame30 secured thereto and also fitting on the sleeve to bear against a cam31 on the other end of the sleeve.

with a washer 84 therebetween, the sleeve 7 engaging the washer to limitits outward movement. A stationary pin 35 projecting from the frame 15fits in a cam groove of the cam 31 to slide the sleeve on the shaft asthe result of the turning movement of the shaft, the sleeve and theparts carried by it being moved rearwardly and then forwardly with eachrotation of the shaft. The rotary member is caused to turn by theturning movement of the sleeve because of a spring connection 36therebetween, said spring bein contained within the cage formed for itby the spider frame 30 and connected at one end to the sleeve and at theother end to an arm 37 on the ring portion 28 of the rotary member andpermitting the rotary member to be detained during a portion oftherotarymovement of the sleeve and cans -ing it to quickly regain itslost motion as soon as released.

ment teeth 42 on the ring portion 28, beginning at the end of'series 41,and this series is preferably farther from the center of the shaftanddepressed rearwardly out of the plane of teeth 41, as shown in Fig.5. An anchor pawl 43 pivotally mounted on the frameis adapted to engagewith the teeth 41 and 4 2 to permit an escapement of the rotary memberunder the action of the motor as transmitted to it through the lightspring 36. The parts are normally arrested by the engagement of theanchor pawl with the starting arm 38, as shown in Fig. 1, the startingarm restraining the motor and the rotary member being held against thestarting arm by the action of spring 36. The movement of the anchor pawl43 to produce the escapement is caused by means of an electro-magnet 44on the frame attracting its armature which is carried by the anchorpawl, the return movement being accomplished by a spring and beinglimited by a set screw 46 while another set screw 47 bears against aleaf spring 48 carried by the anchor pawl for the purpose of adjustingthe spring action of the pawl. The starting arm 38 is provided with anotch at its end to form a shoulder against which the pawl bears duringits engagement therewith for the purpose of permitting the starting armto force the pawl toward the magnet by a means to be later described andfor the purpose of bringing the armature closer to the magnet andreducing the amount of frictional engagement to be overcome by the pawlin releasing the starting arm when the magnet receives the firstimpulse.

After the starting arm has been released by the first impulse of theselective series of impulses sent fro-m the cent 'al station, the motorbeing free turns the motor shaft, and the play of the pin 89 in the slot40 permits the starting arm to drop for a short distance, while therotary member is given an escapement by the successive operations of theanchor pawl until the selective series of impulses is completed. Thenthe escapement of the rotary member ceases while the movement of themotor shaft continues, meanwhile placing spring 36 under tension. 1V henthe movement of the motor shaft brings the offset portion of the camgroove of cam 31 into engagement with the arm 85 the sleeve 29 is causedto slide rearwardly on the motor shaft and thereby carry the rotarymember out of the plane of engagement with the pawl so as to disengagethe pawl therefrom. The rotary member being thus released from the pawlquickly turns under the action of spring 36 to take up the motion whichit has lost by its detention.

Pivotally mounted on the disk portion 27 of the rotary member is a bellcrank lever 49 having one arm extending alongside of one of the teeth 41and the other arm provided with a signaling member 50 pivoted thereonand normally standing alongside of the tooth 41 following the tooth bywhich I the end of lever 49 stands. A spring 51 connects the signalingmember 50 with the disk portion 27 of the rotary member in such a mannerthat it tends to hold both the signaling member 50 and the lever 49 intheir normal positions just described against stops 52 and 53respectively which are preferably formed by lugs bent up from the disk27. The spring 51 is adapted to return either the signaling member aloneto its normal position or the lever 49 with the signaling member. Thelever 49 and the signaling member 50 are arched to avoid the spring 51,as shown in Fig. 9, and the signaling member has a projecting pin 54 onits front face for engagement with the lever 49 and a contact lug 55 onits rear face capable of engaging with a contact 56 which projectsthrough an opening in the disk portion 27 of the rotary member withoutengaging the walls thereof. The contact 56 comprises the end of a stripof metal which forms a contact ring 57 mounted on the arms of spiderframe 30 but insulated therefrom, there being a spring brush 58 mountedon but insulated from the casing 15 to en gage the contact ring 57 andthereby es tablish electrical connection with the spring contact 56.There is a break in the ring 57, shown in Fig. 6, which forms a gap forbreaking the circuit established by the engagement of the signalingmember with the contact 56 by the brush 58 instead of by the signalingmember.

When the number of impulses of the selective series of impulses sentfrom the central or signaling station to all of the sub-- stations onthe line corresponds with the number of a particular instrument theretary member of such instrument is permitted an escapement which isjust suflicient to bring into engagement with the anchor pawl that tooth41 which stands alongside of the signaling member 50, and consequentlywhen the change in position of the rotary member is effected by theaction of cam 31 the signaling member 50 will be engaged by the pawl anddetained thereby while the rotary member turns under the action ofspring 36 to take up its lost motion with relation to the motor shaftand such detention of the signaling member by the pawl causes suchmember to swing on its pivotal connection with the lever 49 and intoengagement with the spring contact 56, as shown in Fig. 2, where itescapes from its engagement with the pawl by its angular position but iscaught by a spring actuated bell crank dog 59 on the disk 27 and islocked thereby against turning to its normal position. An electricalcircuit is completed by the engagement of the signaling member 50 withthe spring contact 56 to produce a signal in any desirable manner atthat station.

The signaling member 50 being locked in its contacting, position bythedog 59 continues the signal through the remainder of the cycle ofoperation of the rotary member until the starting arm 38 reaches thestarting point where it engages with the pawl 43, when a lug 60projecting from the washer 34 on the motor shaft forces its way frombehind the curved end of dog 59 to cause said dog to swing and releasethe signaling member and permit its spring to return it to its normalposition. The lug 60 has acquired its position behind the curved end ofdog 59 by reason of the shifting of the rotary member on the motorshaft, the end of the dog passing the lug 60 while the rotary member isin the rear position and being brought into the plane of the lug whenthe rotary member is returned to its' front position; The; pin 61 on thedisk 27 engages the lug 60 to limit the advance of the rotary member onthe motor shaft when it is re leased from the pawl after being detainedthereby, and the position of the lug 60 between the pin 61 and thecurved end of dog 59 is shown in Fig. 3, which position is maintaineduntil the starting arm 38 is again engaged by the pawl 43, as abovementioned, and the continued motion of the motor shaft, permitted by theplay of pin '39 in slot- 40, causes the release of the signaling memberfrom the dog and when the pin 39 reaches the] end of slot 40 the motoris brought to rest with the parts in their normal positions. This travelof the pin 39 in the slot 40' from the time of engagement of the starting arm with the pawl to the time of stop ping the motor permits asufficient angular movement of the'eccentric stud33 on which thestarting arm is mounted to give said starting arm an endwise movementthat will force the pawl 43 against the action-of its spring and bringthe armature closer to the magnet, as shown in Fig. l;

. Should the number of impulses in the series of signaling impulses begreater than the number of the instrument under consideration, it isobvious that the signaling member then having passed the pawl 43 willnot be engaged thereby when the rotary memberis' shifted and the sinaling circuit at that station will not be afiected. When,

however, the number of impulses in the se- "ri-es of signalingimpulsesis less than the number of the instrument 'under consideration, theguard lever 49' will be in position to be first engaged by the pawl andiwill be swung thereby, as shown in Fig.4, to withdraw the signalingmember 50 from the path of the pawl, and both the guard lever and thesignaling member will escapefrom the pawl without the signaling memberbeing brought into engagement with the spring contact 56, the spring 51restoring both the signaling member and the lever 49 to their normalpositions as soon as theyare released from theipawl.

In order that the instrument justedtorespondto any number of impulsesdesired withinthe range of the system the disk 27*ismade adjustablewithin the ring 28. "A simple means for accomplishing this adjustment isshown in the drawings the edge of the disk beingslotted to provide atoothed projection 62 to engage with a series of notches 62 on the inneredge of the ring, there being a tapering screw 63 threaded in the slotto crowd'the' projec- Theengagement between the disk 27 and the ring 28is made by the ends of arms of the spider frame 30, Figs. 6 and 7, whichbear against the rear faces of thering and may be ad which have tongues64 cut therefrom and passed through openings in the edge of the disk andbent outwardly on the front of the disk to overlap the meeting linebetween the disk and ring. The ends of three equally spaced arms of thespider frame are thus caused to bear against both faces of the ring anddisk and thereby hold thering in place on the disk, though permittingthe movement of the disk within the ring for the purpose ofadjustment asdescribed. For convenience in entering the tongues 64 through the ringthe inner edge of the ring is provided with notches 65 which are sodisposed that they do not come in line with the tongues 64 in anyoperative adjustment of the disk within the ring.

The clock work mechanism may be rewound in any desired manner, as bymeans of the usual key, but it is considered desirable toprovide forrewinding by means of the movements of the anchor pawl 43. One form ofsuch mechanism is illustrated in the drawings and comprises a bell cranklever 66 pivotally mounted on the shaft of a ratchet wheel 67 andloosely connected at one end to the pawl 43 while carrying a dog 68 atits other end to engage the teeth of the ratchet wheel 67 and turn thesame with the successive swinging movements of the pawl 43 caused by thepulsations of the signal, there being a detent 69 for preventing thebackward turning of the ratchet wheel. Referring to Figs. 5 and 12, theshaft on which the ratchet wheel 67 is mounted is geared down to thewinding shaft 16 through the successive gears and pinions 70, 71, 72,73, 74, 75, 76 and 77, most of which are loosely mounted on shaftscommon to the motor mechanism and the last being fastened on the windingshaft 16. Thus the move ments of the ratchet wheel 67 are caused torewind the spring 18, the object being to keep said spring in acondition to operate the mechanism. It is also thought desirable in somecases to provide for operating a switch bymeans of the motor shaft 26and for this purpose the shaft has a cam 79, Fig. 10, which is adaptedto move a spring member 80 of a switch mechanism and cause it to bringinto engagement a pair of insulated spring contacts 81 and 82 in oneposition of the motor shaft and to bring into engagement a pair ofinsulated'spring contacts 83 and S4 in another position of the shaft,each pair of spring contacts being disengaged when the other pair isengaged. This switch mechanism may be utilized for various purposes suchas switching the line connection the first considered instrument, tocause the osaeso signaling at one of the instruments branch circuit.

Other objects may be accomplished by the cam actuated switch mechanism,such as substituting a bell or other signal means in in such the linecircuit for the magnet 44 when the i switch is operated, such bellhaving in 1ts 3 switch is illustrated in diagram in Fig. 2,

where the two main line wires 85 and 86 are connected alternately withthe magnet 4e and a bell 87 by means of the cam ope-rated switchmechanism. A wire 88 connects line wire 86 with magnet is and a wire 89connects the other terminal of magnet 44 with A. wire 90 connects lineswitch contact 81. wire 85 with switch contacts 82 and 84-, while theother switch contact 83 is grounded on the frame 15 of the instrument bymeans of a wire 91. A wire 92 connects the line wire 86 with bell 87 anda wire 93 connects the other terminal of the bell with brush 58: \Viththese connections the signaling impulses sent over the line wires 85 and86 from the central station are received by the magnet it of eachstation, the circuit thereof being from line wire 86 through wire 88 tomagnet H and thence through wire 89 and closed switch contacts 81 and 82through wire 90 to the other line wire 85. When the time for signalingimpulses has passed the cam 79 passes from beneath the spring member 80to permit it to disconnect the switch contacts 81 and 82 to open thecircuit through the magnet 44; as just traced and engage switch contacts83 and 84 to close a circuit including the bell S7 and the brush 58, thelatter circuit being from line wire 86 through wire 92 to bell 87 andthence through line 93 to brush 58, through the contact ring 57 engagedby the brush and the spring contact 56 of said contacting ring to thesignaling member 50, if the impulses have been of the necessary numberfor causing the signal at the instrument under consideration and throughthe frame of the instrument with which the signaling member is inmetallic connection through the operative parts, by way of wire 91 fromsaid frame to the engaged switch members 83 and 84;, and then throughwire 90 to line wire Dur ing the continuance of the circuit last described a ringing current sent over the line wires from the centralstatlon will cause the operation of the bell 87 at that station onlywhich has been called by the series of sclective impulses.

Rather than to have the signaling circuit broken at the point ofengagement between the signaling member and the spring contact 56 thegap is provided in contact ring 57 so that said contact ring leaves thebrush 58 beforethe signaling member is released by the dog 59 and thebreak of the signaling circuit is therefore made at the brush.

It is obvious that the bell 87 may be of the alternating current typeand that the alternating current circuit for operating same may beclosed at the signaling station throughout the signaling opeation so asto be effective as soon as the signaling contact is made.

In order to retard the action of the motor the motor shaft 26 ispreferably geared up to a governor of any suitable type, as here shown,Fig. 5, the connection being by way of gear 91 and pinion 95 and gear 96and pinion 97 to a fan 98.

The disk 27 is provided with a pin 99 similar to pin 61 andapproximately diametrically opposite thereto which is adapted to engagethe lug 60 to cause the rotary member to be positively driven by themotor shaft should the spring 36 become ineffective to disengage thesignaling member or the guard from the pawl.

The operation of the several parts having been described incidental tothe description of their construction and arrangement, it will besuiiicient to briefly review the several steps in the cycle of operationof the instrument in the order in which they occur.

The first impulse of the selective series of impulses received by theinstrument from the central station causes the maghet 44; to swing theanchor pawl -13 and release the starting arm 38 which immediately dropsto take up the play of the pin 39 in slot 40 and as such arm has ceasedto block the operation of the motor the motor shaft begins to turn. Thesuccessive impulses cause the escapement of the rotary member under thepressure of the light spring 36, and these impulses may be rapidly madesince the rotary member may turn even faster than the motor shaft owingto the lead of the starting arm due to its dropping movement. After asufficient time has elapsed for thesending of the maximum number ofimpulses for which the system is designed the offset portion of thegroove in cam 31 reaches the arm 35 and moves the rotary memberrearwardly on the motor shaft to withdraw it from the plane ofengagement with the anchor pawl, thus releasing the rotary member fromthe pawl and permitting it to quickly turn under the action of spring 86to catch up with the motor shaft, the free movement of the rotary memberbeing limited by the engagement of pin 61 with the lug 60. If the numberof im 1 pulses received was greater than the number of the instrument,the signaling member 50 would have passed the anchor pawl and wouldtherefore be unaffected thereby when the rotary member was released, orif-the .number of impulses were less than the munber of the instrumentthe guard lever 49 coming, into engagement wlth the anchor pawl firstwould withdraw the signaling member from engagement therewith before thesignaling member reached the contact 56 and consequently the signalingcircuit would not be closed, but if the number of impulses were the sameas the number of motor.

the instrument, the signaling member being in position to engage theanchorpawl at the time the rotary member was released,

said signaling member would have been de tained by the pawl until it wasbrought into engagement with the signaling contact and into a lockingconnection with the dog 59, so that the signaling circuit would beclosed and remain closed until near the end of the cycle of operation,when the contact ring 57 would ride off of the brush 58 and the startingarm 38 would again engage with the anchor pawl and beheld thereby whilethe motor shaft continued to turn to take up the play of the pin 39 inslot, 40 and thereby move the lug 60 from behindthe curved end of dog 58to release the signaling member and permit it to return to its normalposition. Thus all the parts are returned to their normal positionsready for another signaling operation.

The. swinging movements of the anchor pawl causes the lever 66 to turnthe ratchet wheel 67 and rewind the spring of the I desire it to beunderstood that this invention is not limited to any specific form orarrangement of parts except in so far as such limitations arespecifiedinthe claims.

\Vhat I claim as my invention is- 1. A selective signaling device,comprisinga suitably operated pawl, a motor driven rotary member havmgescapement teeth engaged by the pawl, means for moving the' rotarymember out of the path of. the pawl, and a signaling member in pos1t1onto be engagedby the pawl for producing a signal 1 when the rotary memberis moved out of the path of the pawl from a pos1t1on v1n wh ch thepawlengages a tooth corresponding to;

the number of the signaling device.

2. A selective signaling device, comprising a suitably operated pawl, amotor driven rotary member having escapement teeth engaged by thepawl,means for moving the rotary member out of the path of the pawl, asignaling member movable with the rotary 'member in posit-ion to beengaged by the pawl when the rotary member is moved out of the path ofthe pawl from the position in which the pawl engages the tooth corresponding to the number of the signaling device, and a signaling circuitwith a contact carried by the rotary member and adapted to be closedwhen the said contact engages the signaling member by reason of thedetention of the signaling member by the pawl.

3. A selective signaling device, comprising a suitably operated pawl, amotor driven rotary member having escapement teeth engaged by the pawl,means for moving the frotary member out of the path of the pawl,

a signaling member moving with the rotary member in position to beengaged by the pawl when the rotary member is moved out of the path ofthe pawl from a position in which the pawl engages the toothcorresponding to the number of the signaling device, a signaling contactcarried by the rotary member and insulated therefrom and adapted to moveinto engagement with the signaling member when the latter is detained bythe pawl, and means for temporarily locking the signaling member in itsposition of engagementwith the signaling L contact. a V v 4. A selectiveslgnahng dev1ce,compr1sing a suitably operated pawl, a motor shaft, arotary member slidably mounted on the .motor shaftand adapted to receivemotion therefrom, a cam carried by the rotary memher, a stationary armengaged by the cam having a yielding connection therewith so as toreceive motion from the motor shaft, a

cam carried by the sleeve, a stationary arm engaged by the cam formoving the rotary member out of the path of the pawl, and a signalingmember carried by the rotary member in a-position to be engaged by thepawl when the rotary member is moved out of the path of the pawl from apos1t1on in which the. pawl engages the tooth corre sponding to thenumber of the signaling device.

6. A selective signaling device, comprising a suitably operated pawlmember, a motor driven rotary member having escapement teeth engaged bythe pawl member, means for moving one of said members laterally todisengage the pawl from the rotary 'memher, a signaling member movablewith the rotary member in a position to be engaged by the pawl when thepawl is thus disengaged from the tooth 'of the rotary membercorrespondmg to the number of the signal.-

ing device, an angular lever pivotally mounted on the rotary memberhaving the signaling member pivoted toone arm thereof and its other armforming a guard in advance of the signaling member to be engaged by thepawl for removing the signaling member from engagement with the pawlwhen the pawl is disengaged from a tooth of the rotary member in advanceof the tooth corresponding to the number of the signaling device.

7. A selective signaling device, comprising a suitably operated pawlmember, a motor driven rotary member having escapement teeth engaged bythe pawl member, means for moving one of said members laterally withrelation to the other member to disengage the pawl from the rotarymember, a guard member pivotally mounted on the rotary member andstanding in position to be engaged by the pawl when the pawl isdisengaged from a tooth of the rotary memher in advance of the toothcorresponding to the number of the signaling device, a spring actuatedsignaling member pivotally mounted on the guard member and standing in aposition to be engaged by the pawl when the pawl is disengaged from thetooth of the rotary member corresponding with the number of thesignaling device, and a signaling contact carried by the rotary memberin a position to be engaged by the signaling member when the signalingmember alone is engaged by the pawl, the engagement of the pawl with theguard. member serving to withdraw the signaling member from engagementwith the pawl before the signaling member engages the signaling contact.

S. A selective signaling device, comprising a suitably operated pawlmember, a motor driven rotary member having escapement teeth engaged bythe pawl member, means for moving one of said members laterally withrelation to the other member to disengage the pawl from the rotarymember, a spring retracted signaling member carried by the rotary memberin position to be engaged by the pawl when the rotary member isdisengaged therefrom, a signaling contact carried by the rotary memberto be engaged by the signaling member, and means on the rotary memberfor temporarily locking the signaling member in its position ofengagement with the signaling contact.

9. A selective signaling device, comprising a suitably operated pawl, amotor driven shaft, a rotary member mounted on the shaft and yieldinglyconnected thereto so as to receive motion therefrom, there beingescapement teeth on the rotary member engaged by the pawl, means formoving the rotary member out of engagement with the pawl, a guard memberpivotally mounted on the rotary member and standing in a POSL tion to beengaged by the pawl when the rotary member is disengaged therefrom at atooth in advance of the tooth corresponding with the number of theinstrument, a spring retracted signaling member pivotally mounted on theguard and standing in a position to be engaged. by the pawl when therotary member is disengaged therefrom at the tooth corresponding withthe number of the instrument, a signaling contact carried by the rotarymember to be engaged by the signaling member when the signaling memberis operated by the pawl, a dog on the rotary member for engaging andlocking the signaling member in the position in which it engages thesignaling contact, and a lug on the motor shaft for releasing the dogfrom the signaling member.

10. A selective signaling device, comprising a suitably operated pawl, amotor driven shaft, astarting arm carried by the motor shaft with alimited rotary play thereon and normally engaged by the pawl, a rotarymember mounted on the shaft and yieldingly connected thereto so as toreceive motion therefrom, said rotary member engaging the starting armto be normally held thereby against movement and having escapement teethto be engaged by the pawl, means for moving the rotary member out ofengagement with the pawl, a guard member pivotally mounted on the rotarymember and standing in a position to be engaged by the pawl when therotary member is disengaged therefrom at a tooth in advance of the toothcorresponding with the number of the instrument, a spring retractedsignaling member pivotally mounted on the guard and standing in aposition to be engaged by the pawl when the rotary member is disengagedtherefrom at the tooth corresponding with the number of the instrument,a signaling contact carried by the rotary member to be engaged by thesignaling member when the signaling member is operated by the pawl, adog on the rotary member for engaging and locking the signaling memberin the position in which it engages the signaling con-' tact, and a lugon the motor shaft for re leasing the dog from the signaling member.

11. A. selective signaling device, comprising a pawl, a magnet foroperating the pawl, a motor driven shaft, a rotary member mounted on theshaft and having a flexible connection therewith to receive motiontherefrom, said rotary member having escapement teeth to be engaged bythe pawl, a starting arm having connection with the motor shaft andnormally engaged by the rotary member and the pawl, means fordisengaging the rotary member from the pawl, a signaling member carriedby the rotary member and adapted to be engaged by the pawl for producinga signal when the rotary member is disengaged therefrom, and means formoving the pawl closer to the magnet for the normal position of theparts whereby it will be more easily operated by the magnet. v

12. A selective signaling device, comprising a pawl, a magnet .foroperating the pawl,

said rotary member engaging the s a motor driven shaft, a starting armhaving an eccentric connection with the motor shaft and. havin a limitedrotary play thereon and normally engaged by the pawl, a rotary membermounted on the shaft, a spring connecting the rotary member with theshaft, tarting arm to be' normally held thereby against movement andhaving escapement teeth to I be engaged by the pawl, means for movingthe rotary member to be engaged by the the pawl, and a signaling membercarried by the rotary member to be engaged by the pawl for producing asignal when the rotary 7 member is disengaged from the pawl, the

play of the starting arm'on the motor shaft servmg to permit a furthermovement of the motor shaft after the starting arm reengages the pawlwhereby the eccentric mountlng of the starting, arm causes it to movethe pawl "to an intermediate position, where it will-be more easilymoved by the magnet.

- 313. A selective signaling device, comprising a suitably operatedpawl, a motor driven rotary member having escapement teeth engaged bythepawl, means for disengaging the rotary member from the pawl, acontact, and-aslgnalmg member carried by the rotary member in positionto be engaged by 7 may be made to respond to the number of signalsdesired.

14. A SGlGCtIVG signaling device, compr1smg a suitably operated pawl, amotor driven rotary member havlng escapement teeth engaged by the pawl,means for disengaglng the rotary member from the pawl, and a.

signaling member carried by the rotary member in position to be engagedby the pawl when the rotary member is disengaged therefrom at the toothcorresponding to the number'of the instrument for producing a signal,said rotary member comprising a disk portion and a surrounding ringportion, a projection on one portion, adjusting teeth on the otherportion to be engaged by the projection, and means for forcing theprojection into the adjusting teeth forlocking the two portions of therotary member in the desired adjustment,the disk portion of therotarymember carrying the signaling member and the ring portion of the rotarymember carrying the escapement teeth.

15. A selective signaling device, comprising a suitably operated pawl, amotor shaft, a rotary member mounted thereonhaving escapement teeth to.be engaged by the pawl, a spider frame mounted on the rotary -memberand forming a spring casing, a coil spring contained within the springcasing and forming a yielding connection between the rotary member andthe motor shaft, means for disengaging the rotary member from the pawl,a signalin member on the rotary member to be engaged by the pawl whenthe rotary member is disengaged therefrom at the tooth corresponding tothe number of the instrument, said rotary member comprising a disk likeportion carrying the signaling member and a surrounding ring portioncarrying the escapement teeth, the arms of the spider frame bearing onone face of the rotary member against both portions thereof at the lineof meeting therebetween, and tongues projecting from said arms of thespider frame and passing through one portion of the rotary member andbearing at the other face of the rotary member against both portionsthereof at the meeting line therebetween, there being notches in one ofthe portions of the rotary member to permit of the passage of thetongues therethrough in one adjustment of the portions of the rotarymember.

16. A selective signaling device, comprising a suitably operated pawl, amotor shaft, a rotary member mounted thereon having escapement teeth tobe engaged by the pawl, a spider frame mounted on the rotary member andforming a spring casing, a coil spring contamedwithm the spring casingand forming a spring connection between the rotary member and the motorshaft, means for disengaging the rotary member from the pawl, asignaling member on the rotary member to be engaged by the pawl when therotary member is disengaged therefrom at the tooth corresponding withthe number of the instrument, said rotary member comprising a disk likeportion carrying the signaling member and a surrounding ring portioncarrying the escapement teeth and having the spring connected thereto,the arms of the spider frame bearing on one face of the rotary memberagainst both portions thereof at the line of meeting therebetween,tongues projecting from the arms of the spider frame and passing throughone portion of the rotary member and bearing at the other face of therotary member against both portions thereof at the meeting linetherebetween, a contact ring mounted on and insulated from the armsofthe spider frame having a gap at one portion and a projection passingthrough the disk portion of the rotary member to be engaged by thesignaling member when the signaling member is engaged by the pawl, and astationary spring brush adapted to bear on the contact ring.

17. A selective signaling device, comprising a suitably operated pawl, aspring motor, a motor shaft driven thereby, a rotary member receivingmotion from the motor shaft and having escapement teeth engaged by thepawl, means for disengaging the rotary member from the pawl, a signalingmember in position to be engaged by the pawl when the rotary member isdisengaged therefrom ata tooth corresponding to the number of theinstrument, and means operated by the movements of the pawl forrewinding the spring motor.

18. A selective signaling device, comprising a suitably operated pawl, aspring motor, a motor shaft driven thereby, a rotary member receivingmotion from the motor shaft and having escapement teeth engaged by thepawl, means for disengaging the rotary member from the pawl, a signalingmember in position to be engaged by the pawl when the rotary member isdisengaged therefrom at a tooth corresponding to the number of theinstrument, a lever connected with the pawl to receive motion therefrom,a dog carried by the lever, a ratchet wheel engaged by the dog, and adriving connection between the ratchet wheel and the spring motor bymeans of which the spring motor is caused to be rewound by the movementsof the pawl.

19. A selective signaling device, comprising a suitably operated pawl, asuitably driven motor shaft, a rotary member receiving motion from themotor shaft and having escapement teeth engaged by the pawl, means fordisengaging the rotary member from the pawl, a signaling member inposition to be engaged by the pawl when the rotary member is disengagedtherefrom at the tooth corresponding to the number of the instrument, acam on the motor shaft, and a double switch actuated by the cam foropening and closing electrical circuits by the movements of the motorshaft.

20. A selective signaling means, comprising a magnet, a pawl operatedthereby, a motor driven shaft, a rotary member receiving motion from themotor shaft and having escapement teeth engaged by the pawl, means fordisengaging the pawl from the rotary member, a signaling member inposition to be engaged by the pawl when the rotary member is disengagedtherefrom at the tooth corresponding to the number of the instrument, acam on the motor shaft, adouble switch actuated by the cam, a main linecircuit, a branch circuit including the magnet and connected by one sideof the double switch to the main line circuit in the normal position ofthe parts, and a local signal circuit including the signaling member anda bell or the like and connected by the other side of the double switchto the main line circuit in another position of the parts.

21. A selective signaling device, compris ing a suitably operated pawl,amotor driven shaft, a rotary member mounted on the shaft and having aflexible connection therewith to receive motion therefrom, said rotarymember having escapement teeth to be engaged by the pawl, means on themotorshaft for engaging the pawl and the rotary member to hold the motorshaft and the rotary member in a normal position and having play on themotor shaft to permit the rotary member to move faster under theescapement of the pawl than the movement of the motor shaft, means fordisengaging the rotary member from the pawl, and a signaling member inposition to be engaged by the pawl to produce a signal when the rotarymember is disengaged therefrom at the tooth corresponding to the numberof the instrument.

22. A selective signaling device, comprising a suitably operated pawl,amotor driven shaft, a rotary member mounted on the shaft and having aflexible connection therewith to receive motion therefrom, saidrotarymember having escapement teeth to be engaged by the pawl, a starting armhaving a limited rotary play on the motor shaft and adapted to engagethe pawl and the rotary member to hold the motor shaft and the r0- tarymember in a normal position and being adapted to drop when released bythe pawl, to take a lead which will permit the rotary member to moveunder the escapement at a greater speed than the movements of the motorshaft, means for disengaging the rotary member from the pawl, and asignaling member in position to be engaged by the pawl to produce asignal when the rotary member is disengaged therefrom at the toothcorresponding to the number of the instrument.

23. A selective signaling device, comprising a suitably operated pawl, amotor driven shaft, a rotary member mounted on the shaft and having aflexible connection therewith to receive motion therefrom, said rotarymember having escapement teeth to be engaged by the pawl, means fordisengaging the rotary member from the pawl, a signaling member inposition to be engaged by the pawl when the rotary member is disengagedtherefrom at the tooth corresponding to the number ofthe instrument forproducing a signal, and means for positively connecting the rotarymember with the motor shaft to disengage the signaling member from thepawl.

24. A selective signaling device, comprising a suitably operated pawl, amotor driven shaft,' a rotary member mounted on the shaft and having aspring eonneotion therewith to receive motion therefrom, said rotarmember having escapement' teeth to be engaged by the pawl, means fordisengaging the rotary member from the pawl, a signaling'inember inposition to be engaged by the pawl when the rotary member is disengagedtherefrom at the tooth correspondingto the number of the instrument forproducing a signal, a pin on the rotary member,

assess Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents.

Washington; D. C.

